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■ <br /> YAMPA/WHITE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of -1.1 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions are considerably below normal. Snowpack Y"'°'-"""p'v� "`� <br /> - <br /> measured 78% of average on February 1, 1991. Precipitation <br /> 4_ <br /> basinwide was 86% of normal for the month of January, but .- 3- . <br /> is 108%of normal for the water year. Flow at the key gaging • - — y: ti : • <br /> station, Yampa River at Steamboat, could not be determined - E - ! ' T <br /> • <br /> due to loss of hydrographic control. Streamflow was generally t 1- - =; _..— <br /> low due to colder than normal temperatures and resulting low i a " — ti �• <br /> runoff. Storage is beingadded to the extent possible at _ /^ I : ;`. ' <br /> g f 7 -�^,� �. • <br /> Yamcola Reservoir and Stagecoach Reservoir. _ <br /> a ? : '', ,.., <br /> Outlook: <br /> Steamflow is likely to remain below normal. The -4 ,. ... •• <br /> JAN81 JA7432 JAN03 JAN34 JANNS JAN66 JAN137 JANBN JANNN JAN90 JAN91 <br /> streamflow forecast is lowest in the Little Snake River ,,pN,►{,YEAR <br /> drainage at 520/0 of average and highest in the North Platte <br /> River drainage near Northgate at 80% of average. <br /> Administrative/Management Concerns: <br /> Water demands will remain low for the next 60-90 days requiring only normal administration of water rights. <br /> However, administration on the Upper Yampa River basin is likely to occur earlier than normal in the irrigation season. <br /> Public Use Impacts: <br /> Decreasing streamflows will impact water recreational uses such as rafting. Recreational uses of Stagecoach and <br /> Steamboat Reservoirs should not be impacted. <br /> • <br />